
The Anadarko Petroleum Lucius Truss Spar, located in 7,100 ft of water offshore in Keathley Canyon 875, 236 miles offshore in the Gulf of Mexico on January 2015. (Source: Robert Seale/Anadarko Petroleum Corp.)
Japanese E&P Inpex Corp. entered a deal on July 26 to purchase U.S. Gulf of Mexico (GoM) assets from soon-to-be-acquired Anadarko Petroleum Corp.
The Tokyo-based company said its U.S. subsidiary reached an agreement with Anadarko to acquire a participating interest in Keathley Canyon and Walker Ridge blocks located roughly 380 km (236 miles) off the coast of Louisiana. The terms of the transaction have not been disclosed.
According to the company press release, Inpex already has plans to drill an exploration well at an early stage in partnership with the operator, Anadarko, subject to management approvals and further evaluation work. Though, Anadarko, itself, is in the process of being acquired by rival Occidental Petroleum Corp.
The portfolio of The Woodlands, Texas-based independent oil company includes a range of global assets. However, what has largely believed key to Anadarko’s takeover is its position in the Permian’s Delaware Basin as Occidental already has agreed to divest the company’s Africa assets.
Occidental’s cash-and-stock bid for Anadarko, which including debt is for about $57 billion, has been approved by the U.S. Federal Trade Commission and is expected to close by the end of this year.
In the sale to Inpex, Anadarko is selling a 40% participating interest in Keathley Canyon blocks 921 and 965 and Walker Ridge blocks 881 and 925. As part of the agreement, Anadarko will retain operatorship with a 60% interest remaining in the blocks.

Inpex is Japan’s largest exploration and production company. The company said it ranks as a mid-tier E&P player, just behind the world’s oil majors.
Though Inpex is currently involved in about 70 projects across more than 20 countries, the company said it considers the GoM as one of its priority exploration areas.
The assets Inpex agreed to acquire from Anadarko are located near the Lucius and Hadrian North producing oil fields, in which the company has participating interest through its subsidiary. The blocks cover an area of 93.2 sq km where the water depth ranges between about 2,150 m and 2,700 m.
Emily Patsy can be reached at epatsy@hartenergy.com.
Recommended Reading
2025 Hamm Summit Goal: Make US NatGas ‘Hero’ for Powergen
2025-04-11 - Stepping up power for data centers “is a phenomenal opportunity here that our industry has to take advantage of. We have to get this right,” the Hamm Institute for American Energy’s executive director Ann Bluntzer Pullin said.
Trio Petroleum Deal Marks Entry into Canada’s Heavy Oil Region
2025-04-10 - California’s Trio Petroleum will acquire producing wells in the Lloydminster, Saskatchewan heavy oil region in a deal valued at roughly $1.38 million.
Prairie Operating Hedged D-J Production Ahead of Market Downturn
2025-04-10 - Approximately 85% of Prairie’s remaining 2025 daily production is locked in at $68.27/bbl WTI and $4.28/MMBtu Henry Hub as part of a strategic hedging program, the company said.
EIA: Tariff Chaos, OPEC Output Increases Spell $57/bbl WTI in 2026
2025-04-10 - Energy Information Administration price estimates for 2025 and 2026 are bad news for producers—if they come to pass—as breakeven prices for operators, even in the Permian Basin, require between $61/bbl and $62/bbl to remain profitable.
Oil Falls More Than 4% as Investors Reassess Trump's Tariff Flip
2025-04-10 - Oil prices fell by nearly $3/ bbl on April 10, wiping out the prior session's rally, as investors reassessed the details of a planned pause in sweeping U.S. tariffs and focus shifted to a deepening trade war between Washington and Beijing.
Comments
Add new comment
This conversation is moderated according to Hart Energy community rules. Please read the rules before joining the discussion. If you’re experiencing any technical problems, please contact our customer care team.